大约有 48,000 项符合查询结果(耗时:0.0437秒) [XML]

https://bbs.tsingfun.com/thread-2667-1-1.html 

如何实现程序后台运行 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

编制的程序软件,在手机中运行时,程序放在后台或者手机锁屏,计时软件程序就会停止计时,再次切换到前端才可以继续运行,有没有方法能够使程序软件可以在后台锁屏的情况下持续运行。
https://bbs.tsingfun.com/thread-2757-1-1.html 

急求技术支持,不知如何将WxBit版APP Inventor的MQTT客户端转化为App Inven...

手机APP代码块描述:设置了当MQTT连接建立之后订阅相关主题和连接断开后给出提示。 手机APP代码块描述:设置了按钮事件,当开锁按钮被点击后就通过主题发送数字1,反之发送数字0。 达到效果:手机APP端数据显示 ...
https://bbs.tsingfun.com/thread-2758-1-1.html 

急求技术支持,不知如何将WxBit版APP Inventor的MQTT客户端转化为App Inven...

手机APP代码块描述:设置了当MQTT连接建立之后订阅相关主题和连接断开后给出提示。 手机APP代码块描述:设置了按钮事件,当开锁按钮被点击后就通过主题发送数字1,反之发送数字0。 达到效果:手机APP端数据显示 ...
https://bbs.tsingfun.com/thread-2945-1-1.html 

AppInventor 如何拼接 json 文本 - App应用开发 - 清泛IT社区,为创新赋能!

需要拼接 json 文本通过 mqtt 发送,原理是利用字典的特性,它天生就是 json 的一种表现,打印出来就是 json 格式文本,拼接方式如下: 使用 创建字典 代码块,默认只有 2 个插槽,表面上看起来只能放 2 组数据,但是它是...
https://stackoverflow.com/ques... 

How can I truncate a datetime in SQL Server?

... Just so the internet knows, you don't have to be restricted to full datepart periods. Here's an example for 15 minute intervals, using integer division: dateadd(minute, datediff(minute, 0, GETDATE()) / 15 * 15, 0) –...
https://stackoverflow.com/ques... 

Set cellpadding and cellspacing in CSS?

...sues in IE ≤ 7 This will work in almost all popular browsers except for Internet Explorer up through Internet Explorer 7, where you're almost out of luck. I say "almost" because these browsers still support the border-collapse property, which merges the borders of adjoining table cells. If you...
https://bbs.tsingfun.com/thread-2721-1-1.html 

MIT于2026元旦已发布v2.77版本:更新非常有限,lamda 表达式(匿名函数)缺...

最新MIT v2.77版本都是一些很细小的常规更新,没有特别需要合并的。之前关注的 lamda 表达式(匿名函数)不在本次更新之列。 中文网暂不跟进本次更新,但是 lamda 表达式(匿名函数)会考虑引入并测试上线。 ------MIT------ ...
https://stackoverflow.com/ques... 

How to fix Array indexOf() in JavaScript for Internet Explorer browsers

If you have worked with JavaScript at any length you are aware that Internet Explorer does not implement the ECMAScript function for Array.prototype.indexOf() [including Internet Explorer 8]. It is not a huge problem, because you can extend the functionality on your page with the following code. ...
https://stackoverflow.com/ques... 

PHP: If internet explorer 6, 7, 8 , or 9

I want to do a conditional in PHP for the different versions of Internet Explorer along the lines of: 17 Answers ...
https://stackoverflow.com/ques... 

Internet Explorer 11 disable “display intranet sites in compatibility view” via meta tag not working

...n using the below html5 doctype and edge compatibility meta tag to force Internet Explorer to not emulate an older browser version, and this has worked ok. ...